Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Benfluralin(1861-40-1)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Benfluralin
Synonyms
Balan
Balfin
Banafine
Benalan
Benefex
N-Butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)aniline
CAS
1861-40-1
Formula
C13H16F3N3O4
Molecular Weight
335.28
EINECS
217-465-2
RTECS
XU4550000
RTECS Class
Agricultural Chemical and Pesticide
Merck
12,1067
Beilstein/Gmelin
2821329

Physical and Chemical Properties

Appearance
Yellow-orange solid.
Solubility in water
70 ppm (25 C)
Melting Point
65 - 67
Boiling Point
369
Vapor Pressure
1.2E-5 (25 C)
Density
1.28 g/cm3 (teC)hniC)al grade) (20 C)
Partition Coefficient
5.29
Heat Of Vaporization
61.6 kJ/mol
Usage
Selective pre-emergence herbicide.

First Aid Measures

Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage
Avoid freezing; store above 40F. Do not store near heat or open flame. Emulsifiable concentrates should not be or stored at temperature near flash-point. Should not be frozen.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation
Respiratory depression - administration of lethal doses intragastrically to animals resulted in shallow, infrequent, and interrupted respirations within 20 to 25 minutes, with death from respiratory arrest within 3 hours to 2 days.
Skin
Hyperemia - single applications of 5% trifluralin to the skin was not irritating to rats. Successive daily applications for 5 days produced mild hyperemia lasting 2 days.
Ingestion
RESPIRATORY DEPRESSION - Administration of lethal doses intragastrically to animals resulted in shallow, infrequent, and interrupted respirations within 20 to 25 minutes, with death from respiratory arrest within 3 hours to 2 days.

Exposure Controls/Personal Protection

Personal Protection
Wear goggles or face shield when handling concn. Coveralls, long-sleeved shirt, impermeable gloves when handling.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Exposure Effects
CNS depression - administration of lethal doses intragastrically to animals produced flaccidity, adynamia, and tremor. In one mouse study, trifluralin administration was associated with various skeletal anomalies in the offspring.
Poison Class
4

Fire Fighting Measures

Flash Point
177
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Fire Potential
Technical material is not flammable. For the emulsifiable concentrates, use ordinary precautions for volatile solvents.

Accidental Release Measures

Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.

Stability and Reactivity

Stability
Shelf life of the emulsifiable concentrates is more than two yr. Decomposed by UV light.
Incompatibilities
Strong oxidizing agents.
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